genus Senecio vs Senecio

genus Senecio and Senecio both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Senecio	Yes	No	No	No
Senecio	Yes	No	No	No

As nouns, genus Senecio and Senecio are synonyms defined as:

genus Senecio and Senecio: enormous and diverse cosmopolitan genus of trees and shrubs and vines and herbs including many weeds

genus Senecio (noun)	Senecio (noun)
enormous and diverse cosmopolitan genus of trees and shrubs and vines and herbs including many weeds	enormous and diverse cosmopolitan genus of trees and shrubs and vines and herbs including many weeds